Assessment of Half-Mask Elastomeric Respirator and Powered Air-Purifying Respirator Reprocessing for an Influenza Pandemic

Details

• Personal Author:
  Bergman, Michael ; Harnish DA ; Heimbuch BK ; Lawrence C ; Mills D ; Sandoval-Powers M
• Description:
  BACKGROUND: Health care facilities are considering the use of reusable respiratory protective devices (RPDs) to mitigate a potential N95 filtering facepiece respirator shortage caused by an influenza pandemic. US regulators are also considering stockpiling reusable RPDs for pandemic preparedness, but limited data exist on the effectiveness of cleaning and disinfection of these devices. This study defines reprocessing protocols and evaluates their effectiveness against a pandemic influenza strain in a laboratory setting. METHODS: Five half-mask elastomeric respirator models and 3 powered air-purifying respirator models were contaminated with influenza virus and artificial skin oil on multiple surfaces. RPDs were then manually treated with 1 of 2 methods: cleaned or cleaned and disinfected. Presence of viable influenza was determined via swab sampling and a median tissue culture infectious dose assay. RESULTS: Across 41 RPD surfaces, a mean log reduction in viable influenza of 4.54+/-0.97 log10 median tissue culture infectious dose was achieved for all treated surfaces, which included both cleaned and cleaned and disinfected surfaces. CONCLUSIONS: The methods defined as part of this study are effective for eliminating viable influenza in the presence of artificial skin oil on most of the RPD surfaces tested. Material type and RPD design should be considered when implementing RPD reprocessing protocols. [Description provided by NIOSH]
• Subjects:
  Communicable Diseases Disinfectants Elastomers Health Care Facilities Workforce And Services Influenza, Human Laboratories Occupational Health Personal Protective Equipment Respiratory Protective Devices Safety Viral Diseases

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• Keywords:
  Air Purifying Respirators APR Author Keywords: Cleaning Infection Control Disinfection Elastomeric Half-mask Respirators Face Masks Face Shields Health Care Facilities Influenza Laboratory Testing Models Mucin N95 Respiratory Protection Respiratory Protective Equipment Reuse Sampling Sebum Tissue Culture Viral Diseases

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• ISSN:
  0196-6553
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  Florida ; OSHA Region 3 ; OSHA Region 4 ; Pennsylvania
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  NPPTL - National Personal Protective Technology Laboratory
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  45
• Issue:
  12
• NIOSHTIC Number:
  nn:20050388
• Citation:
  Am J Infect Control 2017 Dec; 45(12):1324-1330
• Contact Point Address:
  Delbert A. Harnish, MS, Engineering Science Division, Applied Research Associates, 430W5th St, Ste 700, Panama City, FL 32401
• Email:
  dharnish@ara.com
• Federal Fiscal Year:
  2018
• NORA Priority Area:
  Healthcare and Social Assistance
• Peer Reviewed:
  True
• Source Full Name:
  American Journal of Infection Control
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:0a8bfdcca648b425300673c1a4557b74dde6536f7c4468016c2aa6c58eda1699a3f873cef693c68ac5e6d6409b9ab239cb60254ec36208b0738a991492045510
• Download URL:
  https://stacks.cdc.gov/view/cdc/210755/cdc_210755_DS1.pdf
• File Type:
  [PDF - 705.60 KB ]